As of 4:30 a.m., Toys R Us on High Point Road already had sold out of several items since its 5 p.m. Thanksgiving night opening. A large line of people gathered near its electronics department, as most waited for the doorbuster deal on Polaroid Tablets--marked down at $49.99 for the seven-inch and $99.99 for the 10-inch. By 6:30 a.m., the store had only a handful of seven-inch tablets left in stock.

Among other popular items at the toy store were the Baby Alive doll and Monster High dolls, as well as Power Wheels.

Despite the deals, technology experts advise Black Friday shoppers to heed warning about certain markdowns--especially those on electronics. They suggest not buying off-brand tablets, as their low prices might equate to poor quality. They recommend buying marked-down tablets only if they are from known brands.

Consumer Reports advises televisions are not the best buys on Black Friday, as prices are expected to dip closer to Christmas.

Prices on digital cameras also are expected to drop lower in January, after the CES Consumer Electronics Show. That is where new items are introduced, and the current fads become outdated.

Lastly, experts suggest not buying new products--like the Xbox One and PlayStation 4, which are so new that their markdowns are still very close to retail price.

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